Temperature and Salinity Workup from raw data:
- Compare datalogger data to each other and to YSI sonde data
- Present some background summaries and visualizations comparing instruments
- Choose datasets best representative of station hydrography, default to RBR
- Flag “invalid” data via algorithm based on freezing line
- Calibrate EWLD1 and KALD1 (StarOddi) using YSI data
- Show some comparison plots b/n calibrated and uncalibrated data
- Manually add “Qustionable measurement” flags to questionable conductivity/salinity data and EELD1temerature data form when it was in mud
- Write derived (calibrated, QA/QCd) dataset
CTD-QAQC.Rmd is a cleaned-up version that just returns derived datasets and final plots
Import CTD data
First few rows:
Import YSI data
First few rows:
Compare instrument types (color points) to YSI data (black points)
EWLD1 and KALD1 could use calibration
in April in Jago (JAL), high amounts of stratification meant that YSI may not have hit correct depth and cond/sal reading may be off


Difference in readings between instruments


Calibrate EWLD1 and KALD1 using YSI data
Choose datasets to use in final table
color=StarOddi, black=RBR
Next step = Flagging data
Values below freezing line (with error) are flagged “INV” for Invalid
Finalize tables and display data